diff options
| author | Dan Halbert <halbert@halwitz.org> | 2017-10-15 16:55:41 -0400 |
|---|---|---|
| committer | Scott Shawcroft <scott@tannewt.org> | 2017-10-15 16:57:37 -0700 |
| commit | cfd1809b2bddb4c44adfd4ac187697dfa8e8cc2b (patch) | |
| tree | f5a0c5394e358dd544340261627be854f0e26b07 | |
| parent | 922006dd59323e6019e8fbfe1938e0c30121999c (diff) | |
Suppress A0 (PA02) as a TouchIn-capable pin on CPX.
| -rw-r--r-- | atmel-samd/boards/circuitplayground_express/mpconfigboard.h | 3 | ||||
| -rw-r--r-- | atmel-samd/samd21_pins.c | 8 |
2 files changed, 10 insertions, 1 deletions
diff --git a/atmel-samd/boards/circuitplayground_express/mpconfigboard.h b/atmel-samd/boards/circuitplayground_express/mpconfigboard.h index f9ff05084..2665f300d 100644 --- a/atmel-samd/boards/circuitplayground_express/mpconfigboard.h +++ b/atmel-samd/boards/circuitplayground_express/mpconfigboard.h @@ -3,6 +3,9 @@ #define MICROPY_HW_BOARD_NAME "Adafruit CircuitPlayground Express" #define MICROPY_HW_MCU_NAME "samd21g18" +// Don't allow touch on A0 (PA02), because it's connected to the speaker. +#define PA02_NO_TOUCH (true) + // Salae reads 12mhz which is the limit even though we set it to the safer 8mhz. #define SPI_FLASH_BAUDRATE (8000000) diff --git a/atmel-samd/samd21_pins.c b/atmel-samd/samd21_pins.c index cd66b41ee..b9fb17948 100644 --- a/atmel-samd/samd21_pins.c +++ b/atmel-samd/samd21_pins.c @@ -84,7 +84,13 @@ PIN(PA01, EXTINT_CHANNEL(1), NO_ADC, NO_TOUCH, SERCOM(SERCOM1, 1)); #endif #ifdef PIN_PA02 -PIN(PA02, EXTINT_CHANNEL(2), ADC_INPUT(ADC_POSITIVE_INPUT_PIN0), TOUCH(0), +// Touch is not allowed on A0 (PA02) on Circuit Playground Express. +PIN(PA02, EXTINT_CHANNEL(2), ADC_INPUT(ADC_POSITIVE_INPUT_PIN0), + #ifdef PA02_NO_TOUCH + NO_TOUCH, + #else + TOUCH(0), + #endif NO_TIMER, NO_TIMER, NO_SERCOM, |